@Sturgis,
Good grief, you're such a social isolate, and so unaware of your lack of sexual appeal, you think your kindly 80 year old neighbor is hot to trot with you because she invited you to Christmas dinner out of pity. Don't worry, you paranoid, you won't be her main course, she doesn't want to date you, just go and be gracious, if you can manage to fake being gracious.
I am so relieved, all my main Christmas shopping is finished, and all my out-of-town gifts should arrive by Friday. I really do enjoy giving presents.